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Dental crowns reveal the diet of a species:
12-14-2006 · EurekAlert!According to recent research, the complexity of tooth surfaces reveals the diet of a species. Scientists at the University of Helsinki's Institute of Biotechnology and Department of Geology showed that the more complex the surface of an animal's teeth, the greater the share of vegetables in its diet. For instance, the teeth of carnivores and rodents differ in almost every aspect, but if a carnivore and a rodent eat similar food, their teeth are equally complex. The results were published in Nature.
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Keywords: dental, crowns, reveal, diet, species, crown, specy
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Similar news on "Dental crowns reveal the diet of a species:":
- Dental crowns reveal the diet of a species
12-14-2006 · EurekAlert!
According to recent research, the complexity of tooth surfaces reveals the diet of a species. Scientists at the University of Helsinki's Institute of Biotechnology and Department of Geology showed that the more complex the surface of an animal's teeth, the greater the share of vegetables in its diet. For instance, the teeth of carnivores and rodents differ in almost every aspect, but if a carnivore and a rodent eat similar food, their teeth are equally complex. The results were published in Nature.
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- Scientists discover new species of distinctive cloud-forest rodent
01-24-2007 · EurekAlert!
A strikingly unusual animal was recently discovered in the cloud-forests of Peru. The large rodent is about the size of a squirrel.The nocturnal, climbing rodent is beautiful yet strange looking, with long dense fur, a broad blocky head and thickly furred tail. A blackish crest of fur on the crown, nape and shoulders add to its distinctive appearance. Two color illustrations of Isothrix barbarabrownae, the bushy rodent, are available to the media.
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- Prehistoric remains reveal a drastic shift in northern fur seal ecology
05-21-2007 · EurekAlert!
Northern fur seals have experienced major changes in their behavior, ecology, and geographic range of over the past 1,000 years, according to a new study. Using techniques from archaeology, biochemistry, and ecology, a team of researchers has reconstructed the species’ prehistoric geographical range. Among other results, the scientists found that the northern fur seal’s reproductive behavior was very different in the past than it is today.
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- DNA clues to inform conservation in Africa
05-22-2007 · EurekAlert!
Tracing the evolutionary history of wildlife could improve global habitat conservation, a major Cardiff University study has found. Researchers in the School of Biosciences analysed the African bushbuck -- a common species which lives in most sub-Saharan habitat types -- to test whether DNA similarity between populations living in different habitats can reveal the similarity of those ecoregions now and in the past.
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08-30-2007 · EurekAlert!
For years, biologists in Africa have known that large mammals -- including antelopes and their predators -- were disappearing outside reserves. Now a raft of studies, published in the September 2007 issue of the African Journal of Ecology, show that we have moved beyond this. We are losing species from national parks, bastion of biodiversity conservation. Worryingly, this includes the continent’s crown jewels such as Tanzania's Serengeti National Park.
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- Salk researchers discover first gene that specifically links calorie restriction to longevity
05-02-2007 · EurekAlert!
In studies going back to the 1930s, mice and many other species subsisting on a severely calorie-restricted diet have consistently outlived their well-fed peers by as much as 40 percent. But just how a diet verging on the brink of starvation extends lifespan has remained elusive.
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- Trends in bird observations reveal species' changing fortunes
04-02-2007 · EurekAlert!
Some 40 years of observations catalogued in the North American Breeding Bird Survey show strikingly different changes in the circumstances of birds preferring various habitats and with various migratory habits
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- Picky eating potentially perilous for bats
07-24-2007 · EurekAlert!
Working in the Department of Ecology and Organismal Biology, Justin Boyles and Jonathan Storm examined the possibility of a link between dietary specialization and the risk of extinction for bats in Australia, Europe and North America. Their study, published in the July 25 edition of the online, open-access journal PLoS ONE, indicates that "species of conservation concern often have a more specialized diet than common species," said Boyles.
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07-26-2007 · EurekAlert!
The abundant diversity of characteristics within species likely helped fuel the proliferation and evolution of an odd-looking creature that emerged from an unprecedented explosion of life on Earth more than 500 million years ago. University of Chicago paleontologist Mark Webster reports this finding in the July 27 issue of the journal Science.
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- Scientists complete DNA sequencing and analysis of multiple fruit fly genomes
11-07-2007 · EurekAlert!
In one of the first large-scale comparisons of multiple animal genomes, scientists have analyzed the genomes of 12 species of the fruit fly Drosophila, 10 of which were sequenced for the first time, to reveal insights on the evolution of genes and genomes and to discern the functional elements encoded in animal DNA.
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